Patents by Inventor Andrew Bruce Holmes
Andrew Bruce Holmes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11183648Abstract: A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R1 is the same or different and represents a substituent.Type: GrantFiled: July 12, 2016Date of Patent: November 23, 2021Assignees: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, CAMBRIDGE ENTERPRISE LIMITEDInventors: Carl R. Towns, Chris Mak, Khai Leok Chan, Andrew Bruce Holmes
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Publication number: 20160343961Abstract: A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R1 is the same or different and represents a substituent.Type: ApplicationFiled: July 12, 2016Publication date: November 24, 2016Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, CAMBRIDGE ENTERPRISE LIMITEDInventors: Carl R. Towns, Chris Mak, Khai Leok Chan, Andrew Bruce Holmes
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Patent number: 9419233Abstract: A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R1 is the same or different and represents a substituent.Type: GrantFiled: May 7, 2013Date of Patent: August 16, 2016Assignees: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, CAMBRIDGE ENTERPRISE LIMITEDInventors: Carl R. Towns, Chris Mak, Khai Leok Chan, Andrew Bruce Holmes
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Patent number: 9172052Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.Type: GrantFiled: November 15, 2011Date of Patent: October 27, 2015Assignees: CDT OXFORD LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Carl Towns, Andrew Bruce Holmes, Stephen O'Connor
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Patent number: 9023978Abstract: A material capable of luminescence comprising a polymer or oligomer and an organometallic group, wherein the polymer or oligomer is at least partially conjugated and the organometallic group is covalently bound to the polymer or oligomer and at least one of the nature, location, and proportion of the polymer or oligomer and of the organometallic group in the material are selected so that the luminescence predominantly is phosphorescence.Type: GrantFiled: April 24, 2003Date of Patent: May 5, 2015Assignee: Cambridge Enterprise Ltd.Inventors: Andrew Bruce Holmes, Albertus Sandee, Charlotte Williams, Annette Koehler, Nick Evans
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Patent number: 8945432Abstract: A conductive polymer composition comprising a conductive polymer in a solid polyelectrolyte.Type: GrantFiled: December 23, 2005Date of Patent: February 3, 2015Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Andrew Bruce Holmes, Mary J. McKiernan, Caroline Towns
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Publication number: 20140187716Abstract: Processes for the continuous production of conjugated polymers are disclosed. The processes provide excellent control over reaction parameters and are highly reproducible. The conjugated polymers find use in heterojunction devices.Type: ApplicationFiled: July 13, 2012Publication date: July 3, 2014Applicant: The University of MelbourneInventors: David John Jones, Wing Ho Wallace Wong, Andrew Bruce Holmes, Helga Seyler
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Publication number: 20120065338Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.Type: ApplicationFiled: November 15, 2011Publication date: March 15, 2012Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, CDT OXFORD LIMITEDInventors: Carl Towns, Andrew Bruce Holmes, Stephen O'Connor
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Patent number: 8063554Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.Type: GrantFiled: December 12, 2005Date of Patent: November 22, 2011Assignees: CDT Oxford Limited, Cambridge Display Technology LimitedInventors: Andrew Bruce Holmes, Carl Towns, Stephen O'Connor
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Patent number: 7820803Abstract: The invention relates to immobilized phosphatidic acid probes which can be used to identify important proteins for signal transduction, housekeeping and diagnosis.Type: GrantFiled: August 23, 2001Date of Patent: October 26, 2010Inventors: Len Stephens, Phillip Thomas Hawkins, Andrew Bruce Holmes, Maria Manifava, Ze-Yi Lim, Nicholas Ktistakis, Johannes Wilhelmus John Fitzgerald Thuring
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Patent number: 7795802Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: July 18, 2005Date of Patent: September 14, 2010Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Publication number: 20100025703Abstract: A conductive polymer composition comprising a conductive polymer in a solid polyelectrolyte.Type: ApplicationFiled: December 23, 2005Publication date: February 4, 2010Applicants: Cambridge Display Technology Limited, CDT OXFORD LIMITEDInventors: Carl Towns, Andrew Bruce Holmes, Mary McKiernan
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Publication number: 20090236972Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.Type: ApplicationFiled: December 12, 2005Publication date: September 24, 2009Applicants: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Carl Towns, Stephen O'Connor, Andrew Bruce Holmes
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Patent number: 7365141Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: March 13, 2006Date of Patent: April 29, 2008Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 7358398Abstract: A method of synthesizing a compound of formula I: comprising the step of reacting a moiety of formula II: with a moiety of formula III: in compressed carbon dioxide in the presence of a transition metal catalyst and a base, wherein L is a labile leaving group; RN1 is optionally substituted C5-20 aryl; RN2 is selected from optionally substituted C5-20aryl, optionally substituted C3-20 heterocyclyl, optionally substituted C3-7 alkyl, and optionally substituted sulfonyl; RN3 is selected from H and optionally substituted C1-7 alkyl, C3-20 heterocyclyl and C5-20 aryl; or RN2 and RN3 together with the nitrogen atom to which they are attached form optionally substituted nitrogen-containing C3-20 heterocylyl or C5-20 heteroaryl; and R1 R2 and R3 are independently selected from optionally substituted C1-7 alkyl, C5-20 aryl, C3-20 heterocyclyl, hydroxy, halo, amino and C1-7 alkoxy, or two of R1, R2 and R3, together with the silicon atom to which they are attached, may form a silicon containing C5-7 heterocyclyl group.Type: GrantFiled: March 18, 2005Date of Patent: April 15, 2008Assignee: AstraZeneca UK LimitedInventors: Andrew Bruce Holmes, Catherine Janet Smith, Melanie Wing-Sze Tsang, Theresa Rachel Early, Richard Eden Shute
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Patent number: 7105621Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: December 6, 2002Date of Patent: September 12, 2006Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 7049010Abstract: Provided is a conjugated poly(1,4-arylene vinylene) compound comprising an arylene unit having adjacent substituents, said substituents being oriented such as to affect the electronic structure of the compound sufficiently to cause a blue-shift in the photoluminescence and/or electroluminescence of the compound.Type: GrantFiled: October 21, 1998Date of Patent: May 23, 2006Assignee: Cambridge Display Technology LimitedInventors: Andrew Bruce Holmes, Beng Sim Chuah, Franco Cacialli, Steven Carl Moratti
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Patent number: 6919415Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: August 15, 2003Date of Patent: July 19, 2005Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Publication number: 20040096903Abstract: Probes comprising a cardiolipin derivative covalently attached to a solid phase, other than through an allylic oxygen, are described. Methods of making the probes are also described. A cardiolipin analogue which is amino-derivatised at the end of one of the fatty acid side chains is reacted with an activated ester attached to a solid support. The probes are useful for diagnosis of anti-phospholipid antibody syndrome (APS), and for identifying and purifying cardiolipin binding proteins.Type: ApplicationFiled: December 19, 2003Publication date: May 20, 2004Inventors: William Kenneth Lang, Andrew Bruce Holmes, Ze-Yi Lim, Stuart John Conway, Melloney Kate Johns
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Patent number: 6723811Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: April 28, 2000Date of Patent: April 20, 2004Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend